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NXP Semiconductors S9KEAZ128ACLH
- Part No.:
- S9KEAZ128ACLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
S9KEAZ128ACLH.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,589
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Product details
Overview
S9KEAZ128ACLH from NXP Semiconductors is an automotive-qualified Arm® Cortex-M0+ microcontroller with 128 KB flash, 16 KB RAM, and operation up to 48 MHz-designed for real-time control in engine management, body electronics, and battery monitoring systems.
For engineers reviewing the S9KEAZ128ACLH datasheet, S9KEAZ128ACLH pinout, S9KEAZ128ACLH application, or S9KEAZ128ACLH equivalent, this page delivers verified electrical specs, thermal behavior at –40 to 125°C, CAN interface support, and low-power Stop mode current of 1.9 µA-critical for automotive ECU design validation and BOM selection.
Technical Context
The S9KEAZ128ACLH implements a single-cycle 32-bit x 32-bit multiplier and bit manipulation engine (BME) to accelerate control-loop execution and register-level I/O bit toggling without software overhead. Its internal clock system integrates a factory-trimmed 37.5 kHz reference for 48 MHz system clock generation via FLL, eliminating external crystal dependency in cost-sensitive designs.
It features dual power domains (VDD/VDDA), programmable low-voltage detection with four selectable thresholds (2.56–4.8 V), and hardware CRC acceleration-enabling robust firmware integrity checking and analog-sensor interfacing with simultaneous ADC operation in Stop mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm® Cortex-M0+, up to 48 MHz - enables deterministic real-time response for motor control and safety-critical timing loops |
| Flash / RAM | 128 KB flash / 16 KB RAM - supports AUTOSAR-compliant bootloaders and multi-tasking RTOS with diagnostic partitioning |
| Operating Voltage | 2.7–5.5 V - compatible with 12 V automotive battery rails including cold-crank (6.5 V min) and load-dump transients |
| Temperature Range | –40 to 125°C ambient - qualified per AEC-Q100 Grade 1 for under-hood and transmission control applications |
| Stop Mode Current | 1.9 µA @ 3 V - allows extended battery-off monitoring (e.g., intrusion detection, key-off wake-up) without compromising vehicle parasitic drain |
| CAN Interface | MSCAN module - provides ISO 11898-1 compliant communication for ECU networking with error confinement and loop-back self-test |
| ADC | 12-bit SAR, up to 16 channels, Stop-mode capable - enables continuous sensor sampling (e.g., temperature, pressure) during ultra-low-power states |
Pinout & Package
64-pin LQFP (10 mm × 10 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Digital supply and ground | Multiple dedicated pairs reduce IR drop and noise coupling in high-speed I/O switching |
| VDDA, VSSA | Analog supply and ground | Isolated domain for ADC/ACMP operation; requires separate filtering to maintain 12-bit accuracy |
| PTA0–PTA31, PTB0–PTB31, etc. | GPIO bank terminals | 71 total GPIOs with configurable pull-up (30–60 kΩ), slew rate control, and interrupt capability on all pins |
| RESET_b | Active-low reset input | Asynchronous, Schmitt-triggered; minimum pulse width 1.5 × tcyc ensures reliable deassertion after power ramp |
| EXTAL/XTAL | External oscillator inputs | Supports 32.768 kHz crystal or 4–24 MHz resonator; internal feedback resistor eliminates external components in low-cost configs |
| CANH/CANL | CAN bus differential pair | Integrated termination and fault protection; compliant with ISO 11898-2 physical layer requirements |
Key Features
| Feature | Design Value |
|---|---|
| Bit Manipulation Engine (BME) | Enables atomic bit-set/clear/read/write on memory-mapped peripherals without read-modify-write cycles-critical for ISR-safe register updates |
| Aliased SRAM Bit-Band Region | Maps 1 MB of SRAM address space to individual bit addresses-simplifies driver development for status flags and control bits |
| Programmable Cyclic Redundancy Check (CRC) | Hardware-accelerated CRC-16/CRC-32 over flash or RAM blocks-reduces bootloader verification time by >90% vs. software implementation |
| Low-Power Oscillator (LPO) | 1 kHz internal source active in Stop mode-drives RTC and periodic wake-up timers without external components or crystal startup delay |
| FlexTimer/PWM Modules | Three independent FTM units (1×6-channel + 2×2-channel)-support complementary PWM with dead-time insertion for BLDC motor gate drivers |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time spark timing, fuel injection pulse width calculation, and OBD-II diagnostics in gasoline engines. IC Role / Device Role / Timing Role: Primary controller executing closed-loop combustion algorithms with sub-microsecond jitter tolerance. Use Value: 48 MHz core + single-cycle I/O access ensures deterministic execution of 10 kHz ignition interrupts while servicing CAN diagnostics traffic. |
Use Scenario: Centralized lighting control, door lock actuation, and window lift supervision in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator managing multiple LIN/CAN nodes and analog sensor inputs (e.g., ambient light, rain detection). Use Value: 71 GPIOs and integrated ACMP with 6-bit DAC enable direct resistive sensor interfacing without external op-amps or ADCs. |
| Battery Management System (BMS) | Transmission Control Unit (TCU) |
Use Scenario: Cell voltage monitoring, thermal runaway detection, and charge/discharge MOSFET control in 12 V auxiliary battery packs. IC Role / Device Role / Timing Role: Safety-monitoring node performing periodic ADC scans and CRC-verified flash reads during deep sleep. Use Value: Stop mode current of 1.9 µA and ADC operation in Stop allow continuous cell monitoring with <15 µA total system quiescent current. |
Use Scenario: Solenoid valve timing, clutch pressure regulation, and gear shift logic in automatic transmissions. IC Role / Device Role / Timing Role: High-reliability actuator controller requiring ASIL-B compliance and fail-safe PWM output stages. Use Value: MSCAN interface synchronizes with engine ECU; FTM modules generate precise 100 ns-resolution PWM for proportional solenoid drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9KEAZ128AVLH | Same core, flash, RAM, and peripherals-but rated for –40 to 105°C (V grade) instead of –40 to 125°C (M grade) | Not suitable for under-hood applications exceeding 105°C ambient; acceptable for cabin-mounted modules | Select S9KEAZ128AVLH only when full Grade 1 temperature range is not required-reduces cost and qualification burden |
| S9KEAZ64ACLH | Identical package and pinout, but 64 KB flash and 8 KB RAM; otherwise identical peripheral set and electrical specs | Appropriate for simpler control tasks (e.g., seat control, mirror adjustment) where code footprint <64 KB and no AUTOSAR stack is used | Choose S9KEAZ64ACLH when application firmware fits within 64 KB flash-offers same layout compatibility with lower unit cost |
Compared with S9KEAZ128AVLH, the S9KEAZ128ACLH enables higher-temperature deployment without derating; compared with S9KEAZ64ACLH, it provides headroom for future firmware expansion, cryptographic libraries, and dual-bank OTA updates-making it optimal for scalable ECU platforms.
Availability
S9KEAZ128ACLH is available at Aetrix Electronics and suitable for automotive engine control, battery management, and transmission systems requiring stable component supply across extended product lifecycles.
Supply support for S9KEAZ128ACLH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets-with over 20 years of automotive MCU heritage.
The KEA family targets cost-optimized, AEC-Q100 qualified microcontrollers for entry-level automotive control applications-emphasizing low power, functional safety readiness, and seamless integration with legacy CAN-based architectures.
FAQ
What is the maximum operating frequency of the S9KEAZ128ACLH?
The S9KEAZ128ACLH operates at up to 48 MHz core frequency and 24 MHz bus frequency. This performance level is achieved using the internal FLL with either the factory-trimmed 37.5 kHz reference or an external crystal/resonator. The device maintains timing compliance across its full –40 to 125°C temperature range and 2.7–5.5 V supply voltage window, making it suitable for demanding automotive real-time control tasks.
Does the S9KEAZ128ACLH support CAN communication?
Yes, the S9KEAZ128ACLH includes an MSCAN module compliant with ISO 11898-1. It supports standard and extended frame formats, programmable bit timing, and built-in error confinement logic. The CANH/CANL pins are located on dedicated package terminals and require external termination resistors per ISO 11898-2. This interface is fully operational across the device's automotive temperature range.
What is the lowest power consumption state supported by the S9KEAZ128ACLH?
The S9KEAZ128ACLH achieves 1.9 µA typical current in Stop mode with only the 1 kHz LPO clock active. In this state, the ADC, ACMP, and LVD modules can remain enabled for wake-up event detection. Additional current adders apply for each active peripheral (e.g., +82 µA for ADC, +12 µA for ACMP), but the base Stop mode current remains validated at –40 to 125°C and 3 V supply.
How many GPIO pins does the S9KEAZ128ACLH provide?
The S9KEAZ128ACLH offers up to 71 general-purpose I/O pins across multiple port groups (PTA through PTH). All GPIOs support interrupt generation, configurable pull-up resistors (30–60 kΩ), and programmable drive strength. Eight pins (PTB4, PTB5, PTD0, PTD1, PTE0, PTE1, PTH0, PTH1) additionally support high-current output (±10 mA) for direct LED or relay driving.
Is the S9KEAZ128ACLH AEC-Q100 qualified?
Yes, the S9KEAZ128ACLH is AEC-Q100 qualified Grade 1 (–40 to 125°C ambient). Its qualification includes stress testing for temperature cycling, humidity bias, high-temperature operating life, and electrostatic discharge (HBM ±6 kV, CDM ±500 V). The "S" prefix in the part number explicitly denotes automotive qualification, and the "M" suffix confirms the extended temperature range required for under-hood deployment.
S9KEAZ128ACLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- Kinetis KEA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 58
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9KEAZ128ACLH FAQ
1.How can I place an order for S9KEAZ128ACLH through Aetrix?
Please submit a Request for Quotation (RFQ) for S9KEAZ128ACLH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S9KEAZ128ACLH reliable?
The price and inventory of S9KEAZ128ACLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9KEAZ128ACLH is usually 5 days.
3.What payment methods are accepted for S9KEAZ128ACLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9KEAZ128ACLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9KEAZ128ACLH?
S9KEAZ128ACLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9KEAZ128ACLH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S9KEAZ128ACLH?
For technical support, including S9KEAZ128ACLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9KEAZ128ACLH requirements.
6.How does Aetrix verify that S9KEAZ128ACLH is sourced from the original manufacturer or authorized distributors?
All S9KEAZ128ACLH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S9KEAZ128ACLH meets industry standards.
7.What is the process for return or replacement of S9KEAZ128ACLH?
All S9KEAZ128ACLH units undergo pre-shipment inspection (PSI). If there is an issue with S9KEAZ128ACLH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S9KEAZ128ACLH part is unused and in its original packaging.
Return procedure for S9KEAZ128ACLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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